Carpenter s gage



2` Sheets-Sheet I.

A(No Model.)

A. LAPQRTE.

ARPENTERS GAGE.

Patented June 26, 1888.

(No Model.) 2 sheetssh'en 2;

' lA.. LAPORTE.

GARPBNTBRS GAGE.

No. 385,124. Paten'tedHJv-une 26, 1888'.

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ARTHUR LAPORTE, OF VARE, ASSIGNOR OF ONE-HALF TO J. A. COURTE- MANCHE, OF TORCESTER MASSACHUSETTS.

CARPENTERS GAGE. l

SPECIFICATION forming part of LettersPatent No. 385,124, dated June 26, 1888.

Application lcd April 2, 188B. Serial No. 269555. (No model.)

To all whom, it may concern..-

Be it known that l, ARTHUR LAPORTE, a citizen of Canada, residing at Ware, in the county of Hampshire and State of Massachusetts, have invented certain new and useful improvements in Carpenters Gages; and l do hereby declare that the following is a full, clear, and exact description thereof, which, in connection with the drawings making a part of this specification, will enable others skilled in the art to which my invention belongs to make and use the same.

My invention relates to carpenters7 gages; and it consist-s in certain novel features ot con` struction and operation thereof, as will be hereinafter fully described, and the nature thereof indicated by the claim.

My improved carpenters gage is adapted to be used for allv the purposes of the ordinary carpenters gage, and-in addition has certain special features not found in ordinary gages. It is provided with two marking or cutting disks, one upon each side of the guide-block; also, with two marking or cutting points, one upon each side of the guide-block, and also has a supplementaryguide-plate secured upon one end of the stock ofthe gage, all as will be hereinafter fully described.

Referring to the drawings, Figure 1 is a side View of my improved gage. Fig. 2 is a plan view. Fig. 3 is a central longitudinal vertical section of the gage, as shown in Fig. 1. Fig. 4 is aside view of the gage, showing a different position of the parts thereof; and Fig. 5 is a erosssectiou on line .r fr, Fig. 4, looking in the direction of arrow, same ligure.

In the accompanying drawings, l is the guide-block, provided with a clamping-screw,

2. rThe block lis preferably of circular shape.

and made of wood,with metal plates 1 and 12, secured by screws 3 upon each face thereof. From one of the metal faces, as l', 'extends out at right angles, and preferabl y cast therewith, a cylindrical metal shell, 4, about half the length of the stock 5 of the gage. Upon the end of the shell 4 is a cutting or marking disk, 6. 'y

The stock 5 consists of a rod or cylindrical part, preferably rnade of wood, andis adapted to slide telescopieally in and out of the shell 4 aud project through the guide-block 1. Figs. 1, 2, and 3 show the stock 5 pushed into the shell 4, and projecting out from the face-12 of the guide-block 1, and Fig. 4 shows the stock 5 drawn out from the shell 4.

The stock 5 has upon oneend a metal cappiece, 7, the enlarged oblong end of which forms a supplementary guide block or plate, 8. The guide-plate S may be turned around on the stock 5, as desired, the cap-piece 7 being secured thereto by a screw, 9, and said guide-plate S is madenarrower than themark ing-disk G, so that it will not prevent the operation of said disk as the plate 8 is slid along to guide the same.

Upon the opposite end of the stock 5 ispreferably fitted at-ight cylindrical metal shell,10, of a little less than half thelength of thestock 5. A rotating cutting or marking disk, 11, is secured to the end of said stock by a. screw, 12. A washer, 13, interposed between said disk 11 and the head of the screw 12, prevents any wabbling of said disk.

A groove, 13, extends longitudinally in the stock 5, a corresponding opening being made in the metal shell 4 and inthe metal shell 10, and a sliding bar, 14, provided at each end with cutting or marking points 14 142, ts in said groove 13, and is adapted to slide back and forth therein to adjust the position of the marking-points 14 142 relatively to the marking-disks G and 11.

Bymeansof theset-serew 2 in theguide-block l, having its lower end adapted to come in con tact with the sliding bar 14, (see Fig. 3,) said sliding bar 14 will be held in any position in which it may be set in the groove 13, and at the same time the stock 5 will be clamped within the block 1 and shell 4 in the position which it may be set.

The operation of my improved oarpeuters gage will be readily understood by thoseA skilled in the art from the above description in connection with the drawings. For example, suppose it is desired to use my improved gage for marking the places for the butts of the hinges in the janib of a door. I draw out the stock 5 from the shell 4, as indicated in Figs. 1, 2, and 3, and so adjust it that the distance from the outer face of the guide-plate 8 to the marking-disk 6 will be equal to the distance from the rabbet of thejamb of the door to the part to be cut out for the hinge-butt. I also adjust the sliding bar 14 in its groove 13 so that the distance from the face 12 of the guide-block 1 to the point 142 of said bar 14 will be equal to the distance of the disk 6 to the outer face of the guide-plate 8. The clampingscrew 2 is now turned down to clamp the slid ing bar 14 and stock 5 in their set positions. To mark the place to be eut out for the hingebutts upon the door-jamb,the outer face ofthe guide-plate Sis placed against the rabbet of the door-jamb,with the flat edge of said guideplate resting on the door-jamb, and is drawn down, thus guiding the marking-disk 6, cans ing it to cut or mark' the door-jamb at the places where it is to be cut out for the hingebutt. The gage is then without any readjustment, ready to mark the corresponding places to be cut out on the edge of the door for the hinge-butts, for the face 12 of the guide-block 1 is moved along the side of the door, and the marking-point 142 will mark the places to be cut out on the edge of the door.

When it is desired to mark mortises where the guide-block lis used to guide the gage, the sliding bar 14 is adjusted so that the marking-point 142 Will be at the proper distance from the disk 11, and the gage is used in the ordinary Way; but when the mortises are to be.marked,as in a door-jamb, for the lock, the sliding bar 14 is adjusted so that the markingpoint 14' thereof will be at the proper distance from the marking-disk 6, and the stock 5 is drawn ont so that the outer face of the guideplate 8 will be at the proper distance from the disk 6. The parts are then clamped in position by the set-screw 2. The guide-plate-S is moved along, bearing against the rabbet of the doorjamb, and the mortise is then marked thereon.

It is not necessary to set forth any more of the uses to which my improved gage may be applied, for the advantages of the construction thereof will be apparent to those skilled in the art, especially the provision of the supplementary guide-plate on the end of the stock, and the employment of four cutting or marking surfaces, thus making the gage either right or left handed, and reversible at will.

The details of the construction of some of the parts of my improved gage may be varied somewhat from what is shown and described, if desired, Without departing from the principle of ly invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a carpenters gage, the combination,with the stock provided With a marking-disk at one end and a supplementary guide-plate at the other end, of the guide-block having a cylindrical shell carrying a marking-disk on its outer end, extending out from one face of said block, in which the stock telescopicall y slides, and a sliding bar provided with a markingpoint at each end, extending in a groove in said stock, and a set-screw for clamping the several parts together, all constructed and arranged substantially as shown and described.

ARTHUR LAPORTE.

Witnesses:

J oHN C. DEWEY, C. M. SOHOFIELD. 

